/*
 * Copyright (c) 2015-2020, www.dibo.ltd (service@dibo.ltd).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.icesoft.framework.core.binding.query;

import javax.lang.model.type.NullType;
import java.lang.annotation.*;

/**
 * 绑定管理器
 */
@Target(ElementType.FIELD)
@Repeatable(BindQuery.List.class)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface BindQuery {

	/**
	 * 查询条件
	 */
	Comparison comparison() default Comparison.EQ;

	/**
	 * 数据库字段，默认为空，自动根据驼峰转下划线
	 */
	String field() default "";

	/**
	 * 绑定的Entity类
	 */
	Class<?> entity() default NullType.class;

	/**
	 * JOIN连接条件，支持动态的跨表JOIN查询
	 */
	String condition() default "";

	/**
	 * 忽略该字段
	 */
	boolean ignore() default false;

	/**
	 * 查询处理策略：默认忽略空字符串
	 */
	Strategy strategy() default Strategy.IGNORE_EMPTY;

	/**
	 * 在同一个字段上支持多个{@link BindQuery}，之间会用采用OR的方式连接
	 */
	@Target(ElementType.FIELD)
	@Retention(RetentionPolicy.RUNTIME)
	@Documented
	@interface List {

		BindQuery[] value();

	}

}
